<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <meta name="viewPort" content="width=device-width,initial-scale=1">
  <meta name="author" content="Dex">
  <title>HAPPY MMALL</title>
  <link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
  <link href="https://cdn.bootcdn.net/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
</head>

<body>
  <div id="app">test</div>
  <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</body>

</html>